package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.Objects;

@Service
public class EmployeeServiceImpl implements EmployeeService {

	@Autowired
	private EmployeeMapper employeeMapper;

	/**
	 * 员工登录
	 *
	 * @param employeeLoginDTO
	 * @return
	 */
	public Employee login(EmployeeLoginDTO employeeLoginDTO) {
		String username = employeeLoginDTO.getUsername();
		String password = employeeLoginDTO.getPassword();

		//1、根据用户名查询数据库中的数据
		Employee employee = employeeMapper.getByUsername(username);

		//2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
		if (employee == null) {
			//账号不存在
			throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
		}

		//密码比对
		password = DigestUtils.md5DigestAsHex(password.getBytes());
		//System.out.println(password);
		if (!password.equals(employee.getPassword())) {
			//密码错误
			throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
		}

		if (Objects.equals(employee.getStatus(), StatusConstant.DISABLE)) {
			//账号被锁定
			throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
		}

		//3、返回实体对象
		return employee;
	}

	@Override
	public void save(EmployeeDTO employeeDTO) {
		Employee employee = new Employee();
		BeanUtils.copyProperties(employeeDTO, employee);
		employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
		employee.setStatus(StatusConstant.ENABLE);

		//employee.setCreateTime(LocalDateTime.now());
		//employee.setUpdateTime(LocalDateTime.now());
		////设置当前记录创建人id和修改人id
		//employee.setCreateUser(BaseContext.getCurrentId());
		//employee.setUpdateUser(BaseContext.getCurrentId());

		employeeMapper.insert(employee);
	}

	@Override
	public PageResult page(EmployeePageQueryDTO employeePageQueryDTO) {
		PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
		Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

		return new PageResult(page.getTotal(), page.getResult());
	}

	@Override
	public void startOrStop(Integer status, Long id) {
		Employee employee = Employee.builder().status(status).id(id).build();
		employeeMapper.update(employee);
	}

	@Override
	public Employee getById(Long id) {

		return employeeMapper.getById(id);
	}

	@Override
	public void update(EmployeeDTO employeeDTO) {
		Employee employee = new Employee();
		BeanUtils.copyProperties(employeeDTO, employee);
		//employee.setUpdateTime(LocalDateTime.now());
		//employee.setUpdateUser(BaseContext.getCurrentId());
		employeeMapper.update(employee);
	}
}
